Home / 86,639.07-129,974.81-27,458.85

Finding the Fourth Proportional to 86,639.07, 129,974.81 and 27,458.85

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Solution

The fourth proportional to 86,639.07, 129,974.81 and 27,458.85 is: 41,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,639.07 : 129,974.81 = 27,458.85 : x
  2. Step 2: Convert to fraction form
    86,639.07/129,974.81 = 27,458.85/x
  3. Step 3: Cross multiply
    86,639.07x = 129,974.81 × 27,458.85
  4. Step 4: Simplify right side
    86,639.07x = 3,568,958,674.27
  5. Step 5: Solve for x
    x = 3,568,958,674.27/86,639.07
  6. Step 6: Final answer
    x = 41,193.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.